They're changing espanol series overviews too, some with a message about why they're insisting on doing this with no intention of stopping. I changed them back but these are the ones I saw if anyone's curious.

Vikings has an invalid season added: 4294967295It appears to be a part of this same vandalism as its episode titles are all spanish and are talking about how they think Game of Thrones is better. The username in this case is correquetepillo.